This is great information!
I live in N. Florida and the mosquitos are HORRIBLE...also the white flies (I think that's what they are). I have just started using Repel-X on my mare's legs, face and belly combined with a fly sheet, neck sheet and face mask at night time when the bugs are at their worst. Poor thing looks like a lone ghost out in the pasture at night...LOL.
I'll try the Swat ointment on her ears and face during the day when the small face flies are the worst and maybe she won't have to wear her face mask during the day...It gets so hot and humid here in the summer...I hate to have to cover her during the day as well. ;)